Study on process parameter optimization and surface quality of  horizontal vibration finishing turbine blades

doi:10.16731/j.cnki.1671-3133.2025.06.012

Abstract

Abstract: Based on the complex surface structure of turbine blades and the difficulty of comprehensive and uniform machining,a horizontal vibration finishing method for turbine blades was proposed. Using Discrete Element Method (DEM) the influence of container size,media filling amount,and amplitude on wear depth and particle velocity vector of blade surface was analyzed,and the process parameters were clarified. Using experiment and characterization,the changes in surface defects,surface morphology,and surface residual stress of blades before and after finishing were compared and analyzed. The results show that the blade surface is more uniform after finishing,when the container size was 80 mm×310 mm×200 mm,the media filling amount was 70 %,and the amplitude was 2 mm. The horizontal vibration finishing can effectively improve the surface roughness of blades,remove surface oxide layers of blades,and improve surface residual stress of blades.

Key words: turbine blades, horizontal vibration finishing, container size, media filling amount, amplitude

CLC Number:

ZHANG Wanhu, LI Dongxiang, XU Xingwei, ZHENG Juan, CHEN Haibin, LIU Penghui, PENG Haixiong. Study on process parameter optimization and surface quality of horizontal vibration finishing turbine blades[J]. Modern Manufacturing Engineering, 2025, 537(6): 111-120.

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Study on process parameter optimization and surface quality of horizontal vibration finishing turbine blades

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